2001232997 has 4 divisors (see below), whose sum is σ = 2010207360. Its totient is φ = 1992258636.

The previous prime is 2001232991. The next prime is 2001233027. The reversal of 2001232997 is 7992321002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2001232997 - 2²⁰ = 2000184421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001232991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4486847 + ... + 4487292.

It is an arithmetic number, because the mean of its divisors is an integer number (502551840).

Almost surely, 2^2001232997 is an apocalyptic number.

It is an amenable number.

2001232997 is a deficient number, since it is larger than the sum of its proper divisors (8974363).

2001232997 is an equidigital number, since it uses as much as digits as its factorization.

2001232997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8974362.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 2001232997 is about 44735.1427515326. The cubic root of 2001232997 is about 1260.1799098524.

Adding to 2001232997 its reverse (7992321002), we get a palindrome (9993553999).

The spelling of 2001232997 in words is "two billion, one million, two hundred thirty-two thousand, nine hundred ninety-seven".